Science 3rd qtr

• Earth Science - is the name for all the sciences that collectively seek to understand Earth and its neighbor in space.
• Geology- science comprising the study of earth, its composition andprocesses
• Theophrastus - an ancient green student that first recorded the study of Physical materials of the earth.
• Peri Lithon - the book that Theophrastus made in Itellenic Period
• Geomorphology - study of relief features of Earth's crust
• Diastrophism- refers to the vertical and horizontal movement of the crust that typically produces the mountains.
• Diastrophism, Erosion, Volcanism - are the3 primary geologic forces
• Erosion - the physical removal of rock
• Erosion - geological process in which earthen materials are worn away and transported by natural forcess such as wind or water.
• Volcanism - is the phenomenon related to various processes associated with the surface discharge of magma or hot water.
• Volcanicity - other term for volcanism
• Volcanism - occurs because of Earth's internal heat and is associated with tectonic processes and a part of the rocks style
• Volcanism - is the eruption of molten rock from inside the Earth to the surface.
• Eruption - occurs when molten lava reaches the surface of the earth.
• Geyser- phenomenon on the surface where the ground water beneath the shallow surface is heated up until it explodes into boiling water and steam
• Fumaroles - emit mixtures of steam and other gasses such as hydrogen sulfide which forms to sulfuric acid
• Fumaroles - are also responsible to the intense chemical activities and brightly colored rocks in the thermal areas.
• Hot Spring - occur in many geothermal areas where the surface of the earth intersects the water table.
• Volcano - is an example of extrusive volcanism.
• Volcano - typically cone shape or mountain formed by the extrusion of the lava or ejection of rock fragments from a vent
• Vulcano -it is the derive word of volcano, as an Island of Sicily named after the Roman God of Fire
• Vulcan- Roman God of Fire
• 859 - number of volcanoes active
• Circle of Fire - where 75% of active volcanoes located
• Paricutin - volcano located near the town of San Juan Mexico
• February 1943 - initial eruption of Paricutin
• Cone - the most striking part of a volcano, composed of mixtures of lava and pyroclastic
• Vent - opening through which an eruption takes place.
• Vent - main part of volcano that supplies the magma from underlying source to the top of the volcano.
• Magma Chamber - large underground pool of liquid rock found beneath the the earth's crust
• Crater - basin like the depression over a vent at the summit of the cone.
• Caldera - volcanic depression much larger than original crater.
• Lava - the rock or magma expelled from a volcano during eruption
• Dikes - barrier/obstacles in a volcano
• sills - they are solidified lava flows hat originally forced their way between
• intrusive sheets - other term for sills
• Conduit - channel/ pipe conveying magma
• Flank - side of a volcano
• Summit - highest point of a volcano
• Throat - entrance of a volcano